Suspension advice please

[SS109]

Just purchased an '11 EC250 with 48mm Zokes and Ohlins rear. I got my first ride on it Sunday. Both ends are stiff but ridiculously so on the forks. They didn't compress unless it was a big hit and the compression is set full soft. Front end was sliding off small rocks and pushing out badly in anything soft. Played with rebound but no joy. The rear was stiff but actually didn't feel too bad to me and hooked up really well. Previous owner was 180 lbs and I'm only 140 lbs. Don't know the forks springs but the rear is a 5.4. PFP is adjusted all the way out.

I started going through some of the older threads on here about these forks and the setups everybody was running with them. I found the chart that was posted a while back and it suggests I should be running .38 up front and 4.6 rear.

So, do these spring rates sound right for a mid-pack B racer? Also, where can I even find them? I read something about some KYB fork springs work but nothing definitive so any info on that? Any help or guidance would be greatly appreciated!